Creating High-Protein Creamy Philly Cheesesteak Mac & Cheese is a simple process when following these steps:

1. Cook the Macaroni: Boil water in a large pot. Add the elbow macaroni and cook according to package instructions until al dente. Drain and set aside.

2. Cook the Steak: In a large skillet, heat the olive oil over medium heat. Add the sliced steak and season with salt and pepper. Sauté until browned, approximately 5-7 minutes. Remove from skillet and set aside.

3. Sauté the Vegetables: In the same skillet, add the diced onion and green bell pepper. Cook for about 3-4 minutes until softened. Stir in the frozen corn and sauté for an additional 2-3 minutes.

4. Prepare the Cheese Sauce: In a large saucepan over medium heat, combine the cream cheese, milk, garlic powder, onion powder, paprika, and half of the cheddar cheese. Stir until all ingredients are melted and smooth.

5. Combine Ingredients: Add the cooked macaroni, sautéed steak, and vegetables into the cheese sauce. Stir to ensure everything is coated evenly.

6. Add Remaining Cheese: Transfer the mixture to a greased baking dish. Sprinkle the remaining cheddar cheese on top.

7. Bake: Preheat your oven to 350°F (175°C). Bake for 15-20 minutes until the cheese is bubbly and slightly golden.

8. Cool and Serve: Allow the dish to cool for 5-10 minutes before serving.

By following this straightforward process, you can create a delicious and hearty High-Protein Creamy Philly Cheesesteak Mac & Cheese that everyone will love!